公开(公告)号：US20210325243A1

公开(公告)日：2021-10-21

申请号：US17362548

申请日：2021-06-29

Applicant: STMicroelectronics (Research and Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Jeffrey M. RAYNOR ,  Sophie TAUPIN ,  Jean-Jacques ROUGER ,  Pascal MELLOT

IPC: G01J1/42 ,  G01J1/44 ,  H01L23/58 ,  H01L27/144 ,  H01L31/02

Abstract: An optical sensor includes pixels. Each pixel has a photodetector. A readout circuit performs a process over an exposure time where the photodetector is connected to a reverse bias voltage supply to reset a voltage across the photodetector, and the photodetector is disconnected from the reverse bias voltage supply until that the voltage across the photodetector decreases in response to received ambient light. An ambient light level is then determine an based on a number of times the voltage across the photodetector is reset over the exposure time.

公开(公告)号：US11796386B2

公开(公告)日：2023-10-24

申请号：US17362548

申请日：2021-06-29

Applicant: STMicroelectronics (Research and Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Jeffrey M. Raynor ,  Sophie Taupin ,  Jean-Jacques Rouger ,  Pascal Mellot

IPC: G01J1/42 ,  G01J1/44 ,  H01L23/58 ,  H01L27/144 ,  H01L31/02

CPC classification number: G01J1/4204 ,  G01J1/44 ,  H01L23/585 ,  H01L27/1443 ,  H01L27/1446 ,  H01L31/02019 ,  G01J2001/446 ,  G01J2001/448

Abstract: An optical sensor includes pixels. Each pixel has a photodetector. A readout circuit performs a process over an exposure time where the photodetector is connected to a reverse bias voltage supply to reset a voltage across the photodetector, and the photodetector is disconnected from the reverse bias voltage supply until that the voltage across the photodetector decreases in response to received ambient light. An ambient light level is then determine an based on a number of times the voltage across the photodetector is reset over the exposure time.

公开(公告)号：US09160957B2

公开(公告)日：2015-10-13

申请号：US13937311

申请日：2013-07-09

Applicant: STMICROELECTRONICS (RESEARCH AND DEVELOPMENT) LIMITED

Inventor： Justin Richardson ,  Keith Findlater

IPC: H04N5/378 ,  H04N5/335 ,  H04N5/367 ,  H01L27/146

CPC classification number: H04N5/378 ,  H01L27/14601 ,  H04N5/335 ,  H04N5/367

Abstract: An image sensor IC may have a non-volatile memory for several functions. The functions may include storing control parameters for a camera autofocus module, part tracking data, and data for defect correction or color science. The non-volatile memory can in particular be an antifuse non-volatile memory, which may not need special light shielding.

Abstract translation: 图像传感器IC可以具有用于若干功能的非易失性存储器。 功能可以包括存储用于相机自动对焦模块的控制参数，零件跟踪数据以及用于缺陷校正或色彩科学的数据。 非易失性存储器特别可以是反熔丝非易失性存储器，其可能不需要特殊的光屏蔽。